/**
  ******************************************************************************
  * @file    GPIO/GPIO_IOToggle/stm32f4xx_it.c 
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    04-August-2014
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and 
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_it.h"

/** @addtogroup STM32F4xx_StdPeriph_Examples
  * @{
  */

/** @addtogroup GPIO_IOToggle
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief   This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void)
{
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval None
  */
void HardFault_Handler(void)
{
  /* Go to infinite loop when Hard Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void)
{
  /* Go to infinite loop when Memory Manage exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void)
{
  /* Go to infinite loop when Bus Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void)
{
  /* Go to infinite loop when Usage Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
//void SVC_Handler(void)
//{
//}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void)
{
}

/**
  * @brief  This function handles PendSVC exception.
  * @param  None
  * @retval None
  */
//void PendSV_Handler(void)
//{
//}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
//void SysTick_Handler(void)
//{
//}

/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f40xx.s/startup_stm32f427x.s/startup_stm32f429x.s).    */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/
extern uint8_t key_flg1;
extern uint8_t key_flg2;
extern uint8_t key_flg3;
extern uint8_t key_flg4;



void EXTI9_5_IRQHandler(void)
{
	
    if(EXTI_GetITStatus(EXTI_Line9) != RESET)
    {
        EXTI_ClearITPendingBit(EXTI_Line9);
        if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_9) == 0)
        {
            key_flg2 = ~key_flg2; 
        }
    }

    if(EXTI_GetITStatus(EXTI_Line8) != RESET)
    {
        EXTI_ClearITPendingBit(EXTI_Line8);
        if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_8) == 0)
        {
            key_flg3 = ~key_flg3;
        }
    }

    if(EXTI_GetITStatus(EXTI_Line5) != RESET)
    {
        EXTI_ClearITPendingBit(EXTI_Line5);
        if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5) == 0)
        {
            key_flg4 = ~key_flg4; 
        }
    }
}


//void USART6_IRQHandler(void)
//{
//	uint8_t data,i;
//	uint8_t str_1[256];
//	uint8_t str_2[256];
//	if(USART_GetITStatus(USART6,USART_IT_RXNE) == SET)
//	{
//		data = USART_ReceiveData(USART6);
//		str_1 = &data;
//		i = Parse_Data(str_1);
//		if(i!=-1)
//		{
//			str_2[i]="\0";
//			for(i;i>0;i--)
//			{
//				str_2[i]=str_1[i];
//			}
//		}
//		if(strcmp("BEEP", str_2))
//		{
//			GPIOA->ODR |= (0X01<<15);
//		}
//		else
//		{
//			GPIOA->ODR &= ~(0X01<<15);
//		}
//		USART_SendData(USART6, data);
//		//清除中断标志
//		USART_ClearITPendingBit(USART6, USART_IT_RXNE);
//	}
//}

// 中断函数内
void USART6_IRQHandler(void) {
    uint8_t data;
    int i;  // 改为int类型
    char *str_1;  // 声明为指针
    char str_2[256];  // 正确声明数组

    if(USART_GetITStatus(USART6, USART_IT_RXNE) == SET) {
        data = USART_ReceiveData(USART6);
        str_1 = (char*)&data;  // 强转赋值
        i = Parse_Data((uint8_t*)str_1);  // 传参类型匹配

        if(i != -1) {  // 此时i是int，可比较负数
            str_2[i] = '\0';  // 单引号字符
            for(;i>0;i--) {  // 修正for循环
                str_2[i] = str_1[i];
            }
        }

        if(strcmp("BEEP", str_2) == 0) {  // strcmp需<string.h>
            // 处理逻辑
        }

        USART_ClearITPendingBit(USART6, USART_IT_RXNE);
    }
}


void USART3_IRQHandler(void)
{
	uint8_t data;
	if(USART_GetITStatus(USART3,USART_IT_RXNE) == SET)
	{
		data = USART_ReceiveData(USART3);
		
		USART_SendData(USART6, data);
		//清除中断标志
		USART_ClearITPendingBit(USART3, USART_IT_RXNE);
	}
}


/**************************************
函数名：TIM6_DAC_IRQHandler
函数功能：定时器6中断处理函数
输入参数：无
输出参数：无
其它：在中断中取反蜂鸣器
****************************************/
void TIM6_DAC_IRQHandler(void)
{
	if(TIM_GetITStatus(TIM6, TIM_IT_Update))//判断是否为定时器6的更新中断
	{
		TIM_ClearITPendingBit(TIM6, TIM_IT_Update);//清除中断标志
		//GPIOA->ODR |= (0X01<<15);
		if(key_flg1) 
		{
        	GPIO_ToggleBits(GPIOA, GPIO_Pin_15); // 标志位为1时，定时翻转蜂鸣器
        } 
		else 
        {
            GPIO_ResetBits(GPIOA, GPIO_Pin_15); // 标志位为0时，强制关闭蜂鸣器
        }

	}

}


////解析串口6接受的数据
//uint8_t Parse_Data(uint8_t *data)
//{
//	uint8_t *m_pos;
//	uint8_t data_len;
//	uint8_t real_len;
//	//检查是否以“+IPD,”开头
//	if(strncmp(data,"+IPD,",5) != 0)
//	{
//		return -1;//格式错误
//	}

//	//查找第一个冒号的位置
//	m_pos = strchr(data,":");
//	if(m_pos == NULL)
//	{
//		return -1;
//	}

//	//解析数字长度字段(逗号后的数字)
//	data_len = atoi(data+5);
//	real_len = strlen(data)-7;
//	if(data_len < 0 || data_len != real_len)
//	{
//		return -1;
//	}
//	return data_len;
//	
//}
int Parse_Data(uint8_t *data) {
    uint8_t *m_pos;
    uint8_t data_len;
    uint8_t real_len;

    // 检查是否以 "+IPD," 开头（修正类型不匹配）
    if(strncmp((const char*)data, "+IPD,", 5) != 0) {
        return -1;
    }

    // 查找冒号位置（修正类型不匹配和参数错误）
    m_pos = (uint8_t*)strchr((const char*)data, ':');  // 单引号，强转类型
    if(m_pos == NULL) {
        return -1;
    }

    // 解析数据长度（修正类型不匹配）
    data_len = atoi((const char*)(data + 5));  // 强转类型

    // 计算实际数据长度（修正类型不匹配）
    real_len = strlen((const char*)data) - 7;  // 强转类型

    // 验证长度匹配（移除无意义的比较）
    if(data_len != real_len) {
        return -1;
    }

    return (int)data_len;  // 返回有符号整数，避免类型转换警告
}


/**
  * @}
  */ 

/**
  * @}
  */ 


/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
